.arrowbox {
  list-style: none;
  margin: 0;
  margin-top: 20px;
  padding: 0;
  display: grid !important;
  width: 140px;
  height: 140px;
  grid-template-rows: repeat(3, 1fr);
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 10px;
    
  li {
    display: block;
    border-radius: 4px;
    border: solid 5px #eee;
    transition: all 0.2s;
    width: 36px;
    height: 36px;
    cursor: pointer;
  }
  
  li:hover {
    border: solid 5px #ddd;
  }
  
  .on {
    background-color: rgb(252, 120, 72);
  }
  
  .off {
    background-color: #ddd;
  }
  
  .blank {
    background: none;
    border-radius: 50%;
    cursor: default;
  }
}